1213354201 has 2 divisors, whose sum is σ = 1213354202. Its totient is φ = 1213354200.

The previous prime is 1213354189. The next prime is 1213354223. The reversal of 1213354201 is 1024533121.

It is a happy number.

It is an a-pointer prime, because the next prime (1213354223) can be obtained adding 1213354201 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1095610000 + 117744201 = 33100^2 + 10851^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213354201 - 2⁹ = 1213353689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213354501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606677100 + 606677101.

It is an arithmetic number, because the mean of its divisors is an integer number (606677101).

Almost surely, 2^1213354201 is an apocalyptic number.

It is an amenable number.

1213354201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213354201 is an equidigital number, since it uses as much as digits as its factorization.

1213354201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1213354201 is about 34833.2341449943. The cubic root of 1213354201 is about 1066.5859685803.

Adding to 1213354201 its reverse (1024533121), we get a palindrome (2237887322).

The spelling of 1213354201 in words is "one billion, two hundred thirteen million, three hundred fifty-four thousand, two hundred one".